Show Device Shows Strain Incurred by Flyers I Instruments have been devised for tor measuring an nn airplanes airplane's speed altitude altitude alti alti- I tude tulle and direction now DOW comes a Ii gauge fur for the aviator himself called the accelerometer an Intricate little apparatus which shows how his body reacts to the crafts craft's bounces sudden turns and dips It Is the Invention of James II It Doolittle of the engineering en division of the army array air service according to Popular Mechanics Mechanics Me Me- Magazine and It Is placed under under un un- der the pilots pilot's seat sent Stresses and strains on his body are outlined on a 0 small strip of Him film Lieutenant Doolittle has 3 found that thata a flyer yer can stand Instantaneous movements move e meats ments of ot the plane without Ill effects but bul comparatively ely slower dips and dives of ef continued several seconds sometimes cause him to lose his ties In rounding a pylon at nt high speed for tor Instance the tile blood Is driven to the tho feet teet A pilot la to the pink of condition can stand this but about 12 t seconds Is tho the limit |